Silverthorne v. Sterling Seismic, No. 24-20006 (5th Cir. 2025)
Annotate this Case
Silverthorne Seismic, L.L.C. licensed seismic data to Casillas Petroleum Resource Partners II, L.L.C. and sent the data to Sterling Seismic Services, Ltd. for processing. Silverthorne alleged that Sterling sent unlicensed data to Casillas, which Casillas then showed to potential investors. Silverthorne sued Sterling for trade-secret misappropriation under the Defend Trade Secrets Act, seeking a reasonable royalty as a remedy.
The United States District Court for the Southern District of Texas set the standard for calculating a reasonable royalty, adopting a definition from a previous case, University Computing Co. v. Lykes-Youngstown Corp. The district court certified this order for interlocutory appeal under 28 U.S.C. § 1292(b), concluding that the reasonable-royalty standard was a controlling question of law with substantial ground for difference of opinion and that an immediate appeal would materially advance the litigation. The district court stayed the proceedings pending the appeal, and an administrative panel of the United States Court of Appeals for the Fifth Circuit granted leave to appeal.
The United States Court of Appeals for the Fifth Circuit reviewed the case and determined that granting leave to appeal was an error. The court found that the district court's order did not involve a controlling question of law and that the appeal would not materially advance the ultimate termination of the litigation. The court emphasized that the parties had not yet gone to trial, and Silverthorne had not proven liability, making the damages issue premature. The court vacated the order granting leave to appeal, dismissed the appeal for lack of jurisdiction, and remanded the case for further proceedings.
Some case metadata and case summaries were written with the help of AI, which can produce inaccuracies. You should read the full case before relying on it for legal research purposes.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.